Island



(No Model.)

. R. FRAME & G. A. NBPP.

. WATER CLOSET.

No. 425,416,. Patented Apr. 15, 1890.

UNITED STATES ATENT rricn.

ROBERT FRAME AND CHARLES NEFF, OF NEIVPORT, RHODE ISLAND.

WATER-CLOSET.

SPECIFICATION forming part of Letters Patent N 0. 425,416, dated April 15, 1890.

Application filed December 23,1887. Serial No. 258,788. (No model.)

To all? 1072 0721 it may concern.-

Be it known that we, ROBERT FRAME and CHARLES A. NEFF, both of the city and county of Newport, State of Rhode Island, have in- 5 vented a new and useful Improvement in ater-Closets; and we hereby declare that the following is a full, clear, and exact description of the'same, reference being had to Elie drawings, forming part of this specificaion.

Our improvement relates to the construction of water-closets, urinals, slop-hoppers, 850., which hold water at a fixed level, being the level of a permanent overflow-point to be discharged on additional water entering the bowl by siphonic action; and it consists of a new and improved device for inducing this siphonic action; also, of a device for reducing the noise made in such closets by the breaking of the siphon when it takes air at the mouth of the receiving-limb as the closet is discharged of its contents. In siphon-closets hitherto constructed this noise has been a serious objection.

We are aware that prior to our invention vessels have been constructed holding water at a permanent level and discharging by a siphon brought into action by the addition of water to their contents. Such an one is the water-closet invented by George E. Warring, Jr., and described in patent No. 266,404, wherein it is stated that the mouth of the discharging-siphon has a discharging-limb which delivers to a weir-chamber or false trap or other form of obstruction so constructed that when the outflowof the siphonis greater than the capacity of the free space between the mouth of the siphon and the bottom of the overflow of the weir-chamber or false trap, or

4% between the mouth of the siphon and the obwater in the weir-chamber or false trap is confined, and water continuing to flow through the discharging-limb carries this air with it until it becomes so rarefied as to be unable to withstand the normal atmospheric pressure on the water in the bowl, siphonic action takes place, and the contents of the bowl are discharged. It is not thus that we confine and rarefy the air in the discharging-limb of our siphon and produce the discharge of the contents of the water-closet.

The principle of our invention is-as follows, reference being had to the accompanying drawings, forming part of this specification:

Figure 1 is a vertical section through the center of a water-closet used for convenient illustration. Fig. 2 is a horizontal section through D E on a larger scale.

In the drawings like letters indicate like parts.

In Fig. 1, A B 0 represent a water-closet, in which A is the bowl. B and C constitute an outlet so bent as to constitute a siphon, of which 13 is the receiving-limb and G is the discharging liinb. The height of the water in the bowl is that of the overflow-point X, which rnav be more or less without affecting the operation of our invention.

G is a restriction in the course of the dis charging-limb for the deflection of water flowing through this limb. It may be a ring or rim, or it may consist of one or more projections-on the same horizontal plane, or with one higher than the other. The upper surface or surfaces may. be on a horizontal or on an inclin'ed plane.

6 f is a channel with its lower end opening into the bowl of the closet substantially at the position indicated, and its upper end opening into the siphon for the admission of air into the siphon during the latter part of the discharge to the end that the level of the water in the bowl may be prevented from descending as low as the point y before the siphon begins to break, for the purpose herein after ex plained.

The operation of our invention is as follows: Water stands in the bowl A to the height of the overflow-point X. 011 additional water being admitted to the bowl the level of the water is raised and it overflows at X. Descending through the discharging-limb C a part of it strikes upon the restriction G, is deflected across its aperture, and forms a film or spray, which partially confines the contained air above it in the siphon. "Water continuing to flow into the bowl passes through the air thus confined and carries a part of it with it. This action continues until a sufficient amount of this air is thus withdrawn as so to rarefy it that it is unable to sustain the pressure of the normal atmosphere on the water in the bowl and siphonic action thereupon ensues, by which the contents of the closet are discharged. When thus the contents of the bowl have been lowered to the mouth of the channel or opening a f, sufficient air is ad mitted to the siphon to partially break or stop its action. To accomplish this breaking with the least possible noise is the object of our use of-the channel 6 f. Heretofore this breaking in siphon-closets has .not begun to take place until air was sucked at the point y, and a considerable gulping noise was inevitable. The object of the channel cf as used heretofore in siphons has not had the eifect of preventing the noise in breaking. In our invention the opening is placed vertically and is of such a shape as to admit air to the crown of the siphon gradually as the water falls into the bowl, so that when the point 1 is reached the additional air required to break the siphon completely will not be sufficient to cause the disagreeable gulping noise attendant on the breaking of a siphon without this device. The vertical position of the mouth of our pipe e f with the consequent gradual admission of air obviates the noise that is made when such air-pipe has a horizontal mouth and takes its air all at once.

' When the siphon is broken, the water in the limb B falls back and stands at a point above the mouth of the channel 6 f, while the water in the limb O flows away into the soil-pipe. The bowl is now gradually refilled to the point X, usually by means of an arrangement for the purpose in the flushing apparatus which supplies the closet with water for flushing, and the closet is ready for the next operation.

For uses other than as a water-closetas for a urinal or a slop-hopperour invention may be readily altered in dimensions more bowl, of a siphon composed of an inverted-U-- shaped pipe having communicating receiving and discharging limbs, the inner wall of the latter being provided with an integral abrupt projection for deflecting the water dropping thereon, said bowl being the only opening through which air or water is supplied, substantially as set forth.

2. In a water-closet, the combination, with a bowl, of a siphon composed of an inverted-U shaped pipe having communicating receiving and discharging limbs. the inner wall-of the latter being provided with an integral abrupt projection for deflecting the water dropping thereon, and an air-channel leading from the top of the U-shaped pipe, one end opening into the bowl in a substantially vertical plane, substantially as set forth.

3. In a water-closet, the combination, with a bowl, of a siphon composed of an inverted-U- shaped pipe the discharging-limb of which is provided with a deflecting projection on its interior surface, substantially as set forth.

4. In a water-closet, the oombination,with a bowl, of a siphon composed of an inverted-U- shaped pipe the discharging-limb of which is provided with a deflecting projection on its inner surface, said discharginglimb being curved forward under the bowl, substantially as set forth.

ROBERT FRAME. CHAS. A. NEFF.

\Vitnesses:

WV. I-l. CHAPMAN, L. B. CHAPMAN. 

